Maxim > Products > Amplifiers and Comparators > MAX4291, MAX4292, MAX4294

MAX4291, MAX4292, MAX4294

Ultra-Small, +1.8V, µPower, Rail-to-Rail I/O Op Amps

1.8V Op Amps Deliver 120dB Avol and Drive 2-kilohm loads with 0.017% THD+N

Overview

Technical Documents

Ordering Info

Status

Active: In Production.

Description

The MAX4291/MAX4292/MAX4294 family of micropower operational amplifiers operates from a 1.8V to 5.5V single supply or ±0.9V to ±2.75V dual supplies and has Rail-to-Rail input/output capabilities. These amplifiers provide a 500kHz gain-bandwidth product and 120dB open-loop voltage gain while using only 100µA of supply current per amplifier. The combination of low input offset voltage (±200µV) and high open-loop gain makes them ideal for low-power/low-voltage, high-precision portable applications.

The MAX4291/MAX4292/MAX4294 have an input common-mode range that extends to each supply rail, and their outputs swing to within 46mV of the rails with a 2kΩ load. Although the minimum operating voltage is specified at 1.8V, these devices typically operate down to 1.5V. The combination of ultra-low-voltage operation, rail-to-rail inputs/output, and low-power consumption makes these devices ideal for any portable/two-cell battery-powered system.

The single MAX4291 is offered in an ultra-small 5-pin SC70 package. The dual MAX4292 is offered in a space-saving 8-bump, 1.5mm x 1.5mm footprint, ultra chip-scale package (UCSP™).

Data Sheet

Download	Rev 3	(PDF, 576kB)
E-Mail

Key Features

Ultra-Low Voltage Operation—Guaranteed Down to 1.8V
100µA Supply Current per Amplifier
500kHz Gain-Bandwidth Product
120dB Open-Loop Voltage Gain (R_L = 100kΩ)
0.017% Total Harmonic Distortion Plus Noise (THD + N) at 1kHz
Rail-to-Rail Input Common-Mode Range
Rail-to-Rail Output Drives 2kΩ Load
No Phase Reversal for Overdriven Inputs
Unity-Gain Stable for Capacitive Loads up to 100pF
200µV Input Offset Voltage (MAX4292/MAX4294)
Single in Small 5-Pin SC70
Available in Ultra-Small Packages:
- 5-Pin SC70 (MAX4291)
- 8-Bump UCSP (MAX4292)

Applications/Uses

2-Cell Battery-Operated Systems
Automotive Sensors
Base Station/Wireless Infrastructure
Battery-Powered Applications
Cell Phones
Computers: Desktops, Workstations, and Servers
Computers: Motherboards
Computers: Notebook
Digital Scales/Strain Gauges
GPS Solutions
MP3 Docking Stations: Mid Level
Portable Electronic Equipment
Programmable Logic Controllers (PLCs)
Sensor Amplifiers
Set-Top Boxes
Strain Gauges

Key Specifications:

Operational Amplifiers

Part Number

Amps.

Rail to Rail

A_VCL

V_SUPPLY (Total)
(V)

I_CC per Amp.
(µA)

V_OS
(µV)

CMRR @DC
(dB)

PSRR @DC
(dB)

Input I_BIAS
(nA)

Unity Gain BW
(MHz)

Slew Rate
(V/µs)

e_n
(nV/√Hz)

i_n
(pA/√Hz)

Low Pwr. Shutdn

Package/Pins

Budgetary Price

min

max

typ

max

typ

max

typ

See Notes

MAX4291

Input/Output

1.8

5.5

100

225

2500

100

0.5

0.2

0.05

MAX4292

MAX4294

See All Operational Amplifiers (160)

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Diagram

Pin Configurations

Application Notes

Tutorial 741		Rail-to-Rail Outputs and Beyond-the-Rails Inputs: The Inside Story on Micropower Op Amps
Application Note 3741		Analog ICs for Low Voltage Systems

Product Guides

Amplifiers and Comparators (PDF)

Reliability Reports

Reliability Report:	MAX4291.pdf MAX4292.pdf MAX4294.pdf
Show FIT data for:

Software/Models

MAX4291 Macromodel

MAX4291 Orcad Library

MAX4291AVOL Test Circuit

MAX4291GBW Test Circuit

MAX4291SLEW Test Circuit

MAX4292 Macromodel

MAX4292 Orcad Library

MAX4292AVOL Test Circuit

MAX4292GBW Test Circuit

MAX4292SLEW Test Circuit

MAX4294 Macromodel

MAX4294 Orcad Library

MAX4294AVOL Test Circuit

MAX4294GBW Test Circuit

MAX4294SLEW Test Circuit

Ordering Information

Filters:

Part Number:

Package:

Temperature:

Tape and Reel

Sample

Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX4291ESA			Active	N.SO;8 pin Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX4291EUK+			Active	SOT;5 pin;9 mm² Outline Drawing:21-0057 (PDF) Land Pattern: 90-0174 (PDF) Use pkgcode/variation: U5+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX4291EUK+T			Active	SOT;5 pin;9 mm² Outline Drawing:21-0057 (PDF) Land Pattern: 90-0174 (PDF) Use pkgcode/variation: U5+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX4291EUK-T			Active	SOT;5 pin;9 mm² Outline Drawing:21-0057 (PDF) Land Pattern: 90-0174 (PDF) Use pkgcode/variation: U5-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX4291EXK			Active	SC70;5 pin;5.3 mm² Outline Drawing:21-0076 (PDF) Land Pattern: 90-0188 (PDF) Use pkgcode/variation: X5-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX4291EXK+			Active	SC70;5 pin;5.3 mm² Outline Drawing:21-0076 (PDF) Land Pattern: 90-0188 (PDF) Use pkgcode/variation: X5+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX4291EXK+T			Active	SC70;5 pin;5.3 mm² Outline Drawing:21-0076 (PDF) Land Pattern: 90-0188 (PDF) Use pkgcode/variation: X5+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX4291EXK-T			Active	SC70;5 pin;5.3 mm² Outline Drawing:21-0076 (PDF) Land Pattern: 90-0188 (PDF) Use pkgcode/variation: X5-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX4292EBL+T			Active	UCSP;8 pin;2.5 mm² Outline Drawing:21-0093 (PDF) Land Pattern: Not Available Use pkgcode/variation: B9+2*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX4292EBL-T			Active	UCSP;8 pin;2.5 mm² Outline Drawing:21-0093 (PDF) Land Pattern: Not Available Use pkgcode/variation: B9-2*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX4292ESA			Active	SOIC(N);8 pin;30.9 mm² Outline Drawing:21-0041 (PDF) Land Pattern: 90-0096 (PDF) Use pkgcode/variation: S8-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX4292ESA+			Active	SOIC(N);8 pin;30.9 mm² Outline Drawing:21-0041 (PDF) Land Pattern: 90-0096 (PDF) Use pkgcode/variation: S8+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX4292ESA+T			Active	SOIC(N);8 pin;30.9 mm² Outline Drawing:21-0041 (PDF) Land Pattern: 90-0096 (PDF) Use pkgcode/variation: S8+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX4292ESA-T			Active	N.SO;8 pin Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX4292EUA			Active	µMAX;8 pin;16.2 mm² Outline Drawing:21-0036 (PDF) Land Pattern: 90-0092 (PDF) Use pkgcode/variation: U8-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX4292EUA+			Active	µMAX;8 pin;16.2 mm² Outline Drawing:21-0036 (PDF) Land Pattern: 90-0092 (PDF) Use pkgcode/variation: U8+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX4292EUA+T			Active	µMAX;8 pin;16.2 mm² Outline Drawing:21-0036 (PDF) Land Pattern: 90-0092 (PDF) Use pkgcode/variation: U8+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX4292EUA-T			Active	µMAX;8 pin;16.2 mm² Outline Drawing:21-0036 (PDF) Land Pattern: 90-0092 (PDF) Use pkgcode/variation: U8-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX4292EUB			Active	Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX4294ESD			Active	SOIC(N);14 pin;54.2 mm² Outline Drawing:21-0041 (PDF) Land Pattern: 90-0112 (PDF) Use pkgcode/variation: S14-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX4294ESD+			Active	SOIC(N);14 pin;54.2 mm² Outline Drawing:21-0041 (PDF) Land Pattern: 90-0112 (PDF) Use pkgcode/variation: S14+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX4294ESD+T			Active	SOIC(N);14 pin;54.2 mm² Outline Drawing:21-0041 (PDF) Land Pattern: 90-0112 (PDF) Use pkgcode/variation: S14+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX4294ESD-T			Active	N.SO;14 pin Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX4294EUD			Active	TSSOP;14 pin;33.4 mm² Outline Drawing:21-0066 (PDF) Land Pattern: 90-0113 (PDF) Use pkgcode/variation: U14-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX4294EUD+			Active	TSSOP;14 pin;33.4 mm² Outline Drawing:21-0066 (PDF) Land Pattern: 90-0113 (PDF) Use pkgcode/variation: U14+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX4294EUD+T			Active	TSSOP;14 pin;33.4 mm² Outline Drawing:21-0066 (PDF) Land Pattern: 90-0113 (PDF) Use pkgcode/variation: U14+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX4294EUD-T			Active	TSSOP;14 pin Land Pattern: Not Available	-40°C to +85°C	See data sheet

Notes:

Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product Naming Conventions.
* Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.

Notes and Comments

SC70, +1.8V, Rail-to-Rail I/O op amps, 0.017% THD+N, 120dB open-loop gain

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See All Operational Amplifiers (170 Products)

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More Information

Topmark Coding	MAX4291
Topmark Coding	MAX4292
New Product Press Release	[ 2001-09-05 ] [ 2000-01-22 ]

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Information Index

Overview		Technical Documents		Ordering Info		Related Products
Description Key Features Applications/Uses Key Specifications Diagram Notes and Comments		Data Sheet Application Notes Evaluation Kits Product Guides Reliability Reports Software/Models		Price and Availability Samples Buy Online Package Information Lead-Free Information		Similar Products by Function Similar Products by Application Evaluation Kits Products with Similar Part Numbers Products Used With This

Document Ref.: 19-1612 Rev 3; 2002-05-29
This page last modified: 2009-07-15